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KR950001695A - Disc player - Google Patents

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Publication number
KR950001695A
KR950001695A KR1019940013400A KR19940013400A KR950001695A KR 950001695 A KR950001695 A KR 950001695A KR 1019940013400 A KR1019940013400 A KR 1019940013400A KR 19940013400 A KR19940013400 A KR 19940013400A KR 950001695 A KR950001695 A KR 950001695A
Authority
KR
South Korea
Prior art keywords
disc
optical head
memory
recording medium
data
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
KR1019940013400A
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Korean (ko)
Inventor
다츠토 스에토미
Original Assignee
오오가 노리오
소니 가부시끼가이샤
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Publication date
Application filed by 오오가 노리오, 소니 가부시끼가이샤 filed Critical 오오가 노리오
Publication of KR950001695A publication Critical patent/KR950001695A/en
Ceased legal-status Critical Current

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Classifications

    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B19/00—Driving, starting, stopping record carriers not specifically of filamentary or web form, or of supports therefor; Control thereof; Control of operating function ; Driving both disc and head
    • G11B19/20—Driving; Starting; Stopping; Control thereof
    • G11B19/24—Arrangements for providing constant relative speed between record carrier and head
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
    • G11B7/12—Heads, e.g. forming of the optical beam spot or modulation of the optical beam
    • G11B7/125—Optical beam sources therefor, e.g. laser control circuitry specially adapted for optical storage devices; Modulators, e.g. means for controlling the size or intensity of optical spots or optical traces
    • G11B7/126—Circuits, methods or arrangements for laser control or stabilisation
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B11/00—Recording on or reproducing from the same record carrier wherein for these two operations the methods are covered by different main groups of groups G11B3/00 - G11B7/00 or by different subgroups of group G11B9/00; Record carriers therefor
    • G11B11/10—Recording on or reproducing from the same record carrier wherein for these two operations the methods are covered by different main groups of groups G11B3/00 - G11B7/00 or by different subgroups of group G11B9/00; Record carriers therefor using recording by magnetic means or other means for magnetisation or demagnetisation of a record carrier, e.g. light induced spin magnetisation; Demagnetisation by thermal or stress means in the presence or not of an orienting magnetic field
    • G11B11/105—Recording on or reproducing from the same record carrier wherein for these two operations the methods are covered by different main groups of groups G11B3/00 - G11B7/00 or by different subgroups of group G11B9/00; Record carriers therefor using recording by magnetic means or other means for magnetisation or demagnetisation of a record carrier, e.g. light induced spin magnetisation; Demagnetisation by thermal or stress means in the presence or not of an orienting magnetic field using a beam of light or a magnetic field for recording by change of magnetisation and a beam of light for reproducing, i.e. magneto-optical, e.g. light-induced thermomagnetic recording, spin magnetisation recording, Kerr or Faraday effect reproducing
    • G11B11/10595—Control of operating function
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B19/00—Driving, starting, stopping record carriers not specifically of filamentary or web form, or of supports therefor; Control thereof; Control of operating function ; Driving both disc and head
    • G11B19/20—Driving; Starting; Stopping; Control thereof
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B20/00—Signal processing not specific to the method of recording or reproducing; Circuits therefor
    • G11B20/10—Digital recording or reproducing
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
    • G11B7/08—Disposition or mounting of heads or light sources relatively to record carriers
    • G11B7/09—Disposition or mounting of heads or light sources relatively to record carriers with provision for moving the light beam or focus plane for the purpose of maintaining alignment of the light beam relative to the record carrier during transducing operation, e.g. to compensate for surface irregularities of the latter or for track following
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
    • G11B7/08—Disposition or mounting of heads or light sources relatively to record carriers
    • G11B7/09—Disposition or mounting of heads or light sources relatively to record carriers with provision for moving the light beam or focus plane for the purpose of maintaining alignment of the light beam relative to the record carrier during transducing operation, e.g. to compensate for surface irregularities of the latter or for track following
    • G11B7/0941—Methods and circuits for servo gain or phase compensation during operation

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  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Signal Processing For Digital Recording And Reproducing (AREA)
  • Optical Recording Or Reproduction (AREA)

Abstract

본 발명의 주요 목적은 상기의 문제들을 해결하는 디스크형 기록매체에 대한 재생장치를 제공하는 것이다.It is a main object of the present invention to provide a reproducing apparatus for a disc-shaped recording medium which solves the above problems.

본 발명에 따른 디스크 재생장치는 디스크형 기록매체상에 기록된 데이터를 판독하기 위해 디스크형 기록매체상에 광빔을 방사하는 광학헤드와, 광학헤드의 출력신호에 기초하여 발생된 에러신호에 기초하여 광학헤드와 스핀들모터를 서보제어하는 서보수단과, 디코더의 출력데이터를 일시적으로 저장하고, 메모리에 저장된 데이터는 디코더에서 출력된 데이터의 쓰기율보다 낮은 판독율로 판독되는 메모리와, 광학헤드와 메모리를 제어하므로 디스크형 기록매체상에 기록된 데이터가 광학헤드에 의해 읽혀지고 메모리에서 쓰여지는 동안의 제1주기와 디스크형 기록매체상에 기록된 데이터의 판독이 광학헤드에 의해 비연속적이고, 단지 메모리에 저장된 데이터의 출력만이 만들어지는 동안의 제2주기를 교대로 세팅함으로써, 디스크형 기록매체상에 기록된 데이터가 간헐적으로 판독되어 제2주기동안 서보수단의 동작을 중단하는 제어수단으로 구성되어 있는 것을 특징으로 한다.A disc reproducing apparatus according to the present invention is based on an optical head that emits a light beam on a disc-shaped recording medium for reading data recorded on the disc-shaped recording medium, and an error signal generated based on an output signal of the optical head. Servo means for servo control of the optical head and spindle motor, temporarily storing the output data of the decoder, the data stored in the memory is read at a read rate lower than the write rate of the data output from the decoder, the optical head and memory The first period during which the data recorded on the disc-shaped recording medium is read by the optical head and written in the memory, and the reading of the data recorded on the disc-shaped recording medium are discontinuous by the optical head. By alternately setting the second period during which only the output of the data stored in the memory is made, on the disc-shaped recording medium It is characterized in that it comprises a control means for intermittently reading out the data recorded in the intermittent operation for the second period.

Description

디스크 재생장치Disc player

본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음Since this is an open matter, no full text was included.

제1도는 본 발명의 실시예에 따른 기록/재생장치를 나타내는 블럭다이어그램이다. 제2도는 제1도에 나타낸 장치에 대한 제어동작을 도시하는 플로우챠트이다.1 is a block diagram showing a recording / reproducing apparatus according to an embodiment of the present invention. FIG. 2 is a flowchart showing the control operation for the apparatus shown in FIG.

Claims (10)

디스크형 기록매체상에 기록된 데이터를 판독하기 위해 디스크형 기록매체상에 광빔을 방사하는 광학헤드와, 광학헤드의 출력신호에 기초하여 발생된 에러신호에 기초하여 광학헤드와 스핀들모터를 서보제어하는 서보수단과, 디코더의 출력데이터를 일시적으로 저장하고, 메모리에 저장된 데이터는 디코더에서 출력된 데이터의 쓰기율보다 낮은 판독율로 판독되는 메모리와, 광학헤드와 메모리를 제어하므로 디스크형 기록매체상에 기록된 데이터가 광학헤드에 의해 읽혀지고 메모리에서 쓰여지는 동안의 제1주기와 디스크형 기록매체상에 기록된 데이터의 판독이 광학헤드에 의해 비연속적이고, 단지 메모리에 저장된 데이터의 출력만이 만들어지는 동안의 제2주기를 교대로 세팅함으로써, 디스크형 기록매체상에 기록된 데이터가 간헐적으로 판독되어 제2주기동안 서보수단의 동작을 중단하는 제어수단으로 구성되어 있는 것을 특징으로 하는 디스크 재생장치.Servo control of the optical head and the spindle motor based on an optical head emitting a light beam on the disk-shaped recording medium for reading data recorded on the disk-type recording medium, and an error signal generated based on an output signal of the optical head. To temporarily store the servo data, the output data of the decoder, and the data stored in the memory to control the optical head and the memory to be read at a read rate lower than the write rate of the data output from the decoder. The first period during which the data written to the data is read by the optical head and written to the memory and the reading of the data recorded on the disc-shaped recording medium are discontinuous by the optical head, only the output of the data stored in the memory By alternately setting the second period during creation, data recorded on the disc-shaped recording medium is intermittently written. The disk reproducing apparatus, characterized in that the control means is configured to stop the operation of the servo means during the second period. 제1항에 있어서, 제어수단은 상기 광학헤드에서 독출된 데이타의 상기 메모리에서 쓰기와 상기 메모리에 저장된 데이타의 독출을 제어하는 메모리제어부를 포함하고, 상기 메모리 제어부가 상기 메모리에 저장된 데이타량이 소정량보다 크다고 검지할 때 제어수단은 상기 서보수단의 서보동작과 상기 광학헤드의 독출동작을 재개시하는 제어신호를 발하도록 구성된 것을 특징으로 하는 디스크 재생장치.2. The apparatus of claim 1, wherein the control means includes a memory control unit for controlling the writing of the data read out from the optical head in the memory and the reading of the data stored in the memory, wherein the memory control unit stores a predetermined amount of data stored in the memory. And the control means is configured to issue a control signal for resuming the servo operation of the servo means and the reading operation of the optical head when detecting greater. 제1항에 있어서, 일정선속도로 상기 디스크형 기록매체를 회전하며 구동하는 회전구동수단과, 상기 회전구동수단을 제어하는 제어수단을 포함하므로 상기 디스크형 기록매체는 일정 각 속도로 상기 제2주기동안 회전되도록 구성되어 있는 것을 특징으로 하는 디스크 재생장치.The disc-shaped recording medium of claim 1, further comprising: a rotation driving means for rotating and driving the disc-shaped recording medium at a predetermined linear speed; and a control means for controlling the rotation driving means. Disc playback apparatus, characterized in that configured to rotate during the period. 압축된 형태로 기록된 디지탈 오디오신호를 가지는 디스크형 기록매체에 대한 재생장치에 있어서, 디스크형 기록매체상에 기록된 데이터를 판독하기 위해 디스크형 기록매체상에 광빔을 방사하는 광학헤드와, 회전하면서 연속 선속도로 디스크형 기록매체를 구동하는 스핀들모터와, 광학헤드의 출력신호에 기초하여 발생된 에러신호에 기초하여 광학헤드와 스핀들모터를 서보제어하는 서보수단과, 광학헤드의 출력신호를 디코드하는 디코딩수단과, 디코더의 출력데이터를 일시적으로 저장하고, 메모리에 저장된 데이터는 디코더에서 출력된 데이터의 쓰기율보다 낮은 판독율로 판독되는 메모리와, 광학헤드와 메모리를 제어하므로 디스크형 기록매체상에 기록된 데이터가 광학헤드에 의해 읽혀지고 메모리에 쓰여지는 동안의 제1주기와 디스크형 기록매체상에 기록된 데이터의 판독이 광학헤드에 의해 비연속적이고, 단지 메모리에 저장된 데이터의 출력만이 만들어지는 동안의 제2주기를 교대로 세팅함으로써, 디스크형 기록매체상에 기록된 데이터가 간헐적으로 판독되고, 제2주기동안 서보수단의 동작을 중단하는 제어수단으로 구성되어 있는 것을 특징으로 하는 디스크 재생장치.A reproducing apparatus for a disc-shaped recording medium having a digital audio signal recorded in a compressed form, comprising: an optical head for emitting a light beam onto the disc-shaped recording medium for reading data recorded on the disc-shaped recording medium; And a spindle motor for driving the disc-shaped recording medium at a continuous linear speed, servo means for servo controlling the optical head and the spindle motor based on an error signal generated based on the output signal of the optical head, and an output signal of the optical head. The decoding means for decoding, the output data of the decoder are temporarily stored, and the data stored in the memory controls the optical head and the memory to be read at a read rate lower than the write rate of the data output from the decoder. First period and disk type while data recorded on the disk is read by the optical head and written to the memory By reading the data recorded on the lock medium is discontinuous by the optical head, and alternately setting the second period while only output of the data stored in the memory is made, the data recorded on the disc-shaped recording medium can be And a control means for intermittently reading and stopping the operation of the servo means for a second period. 제4항에 있어서, 제어수단은 상기 광학헤드에서 독출된 데이타의 상기 메모리에서 쓰기와 상기 메모리에 저장된 데이타의 독출을 제어하는 메모리제어부를 포함하고 상기 메모리 제어부가 상기 메모리에 저장된 데이타량이 소정량보다 크다고 검지할때 제어수단은 상기 서보수단의 서보동작과 상기 광학헤드의 독출동작을 재개시하는 제어신호를 발하도록 구성된 것을 특징으로 하는 디스크 재생장치.5. The apparatus according to claim 4, wherein the control means includes a memory control unit for controlling the writing of the data read out from the optical head in the memory and the reading of the data stored in the memory, wherein the memory control unit has a predetermined amount of data stored in the memory. And the control means is configured to issue a control signal for resuming the servo operation of the servo means and the reading operation of the optical head when detecting that it is large. 제4항에 있어서, 상기 제어수단은 상기 회전구동수단을 제어하므로 디스크형 기록매체는 일정 각속도로 상기 제2주기동안 회전되도록 구성되어 있는 것을 특징으로 하는 디스크 재생장치.5. The disc reproducing apparatus as set forth in claim 4, wherein said control means controls said rotation driving means so that said disc shaped record medium is rotated during said second period at a constant angular velocity. 제4항에 있어서, 상기 제어수단은 상기 제2주기동안 상기 디코딩수단에 클럭신호의 공급을 중단하도록 구성되어 있는 것을 특징으로 하는 디스크 재생장치.5. The disc reproducing apparatus according to claim 4, wherein said control means is configured to stop the supply of a clock signal to said decoding means during said second period. 제4항에 있어서, 상기 제어수단은 광학헤드를 제어하므로 상기 제2주기동안 광학헤드가 중지상태에 있도록 구성되어 있는 것을 특징으로 하는 디스크 재생장치.5. The disc reproducing apparatus as set forth in claim 4, wherein said control means controls the optical head so that the optical head is in a stopped state during the second period. 제4항에 있어서, 상기 제어수단은 디스크형 기록매체상에서 광빔을 방사하는 광원을 포함하고, 제2주기동안 디스크형 기록매체상에 방사된 광빔의 출력레벨이 상기 서보수단에 의한 서보제어에 필요한 레벨로 하도록 구성되어 있는 것을 특징으로 하는 디스크 재생장치.5. The control apparatus according to claim 4, wherein the control means includes a light source for emitting a light beam on the disc-shaped recording medium, wherein an output level of the light beam emitted on the disc-shaped recording medium during the second period is necessary for servo control by the servo means. And a disc reproducing apparatus, wherein the disc reproducing apparatus is configured to be at a level. 압축된 형태로 기록된 디지탈 오디오신호를 가지는 디스크형 기록매체에 대한 재생장치에 있어서, 디스크형 기록매체상에 기록된 데이터를 판독하기 위해 디스크형 기록매체상에 광빔을 방사하는 광학헤드와,회전하면서 연속 선속도로 디스크형 기록매체를 구동하는 스핀들모터와, 포커스에러신호, 트래킹에러신호 및 광학헤드의 출력신호에 기초하여 스핀들 서보신호를 발생하는 신호를 발생하는 에러신호발생수단과, 에러신호발생부에 의해 각각 출력된 포커스에러 신호, 트래킹에러신호, 스핀들 서보신호를 발생하는 신호에 기초하여 포커스 서보신호, 트래킹 서보신호 및 스핀들 서보신호를 발생하고 포커스 서보신호와 트래킹 서보신호를 광학헤드에 보내어 포커스서보와 트래킹서보를 하고 또한 스핀들 서보신호를 스핀들모터에 보내어 스핀들서보를 하는 서보수단과, 광학헤드의 출력신호를 디코드하는 디코딩수단과, 디코더의 출력데이터를 일시적으로 저장하고, 메모리에 저장된 데이터는 디코더에서 출력된 데이터의 쓰기율보다 낮은 판독율로 판독되는 메모리와, 광학헤드와 메모리를 제어하므로 디스크형 기록매체상에 기록된 데이터가 광학헤드에 의해 읽혀지고 메모리에서 쓰여지는 동안의 제1주기와 디스크형 기록매체상에 기록된 데이터의 판독이 광학헤드에 의해 비연속적이고, 단지 메모리에 저장된 데이터의 출력만이 만들어지는 동안의 제2주기를 교대로 세팅함으로써, 디스크형 기록매체상에 기록된 데이터가 간헐적으로 판독되고, 제2주기동안 서보제어기의 동작을 중단하는 제어수단으로 구성되어 있는 것을 특징으로 하는 디스크 재생장치.A reproducing apparatus for a disc-shaped recording medium having a digital audio signal recorded in a compressed form, the apparatus comprising: an optical head for emitting a light beam on the disc-shaped recording medium for reading data recorded on the disc-shaped recording medium; A spindle motor for driving a disk-shaped recording medium at a continuous linear speed, an error signal generating means for generating a signal for generating a spindle servo signal based on a focus error signal, a tracking error signal, and an output signal of an optical head, and an error signal. A focus servo signal, a tracking servo signal and a spindle servo signal are generated on the basis of the signals for generating the focus error signal, the tracking error signal, and the spindle servo signal respectively outputted by the generator. Send focus servo and tracking servo, and send spindle servo signal to spindle motor to spin Servo means for beaming, decoding means for decoding the output signal of the optical head, and output data of the decoder are temporarily stored, and the data stored in the memory is read at a read rate lower than the write rate of the data output from the decoder. The memory, the optical head and the memory control the first period during which the data recorded on the disc shaped record carrier is read by the optical head and written in the memory, and the reading of the data recorded on the disc shaped record carrier is performed by the optical head. By alternatingly setting the second period during which the output of the data stored in the memory is made non-continuous by means of the data, the data recorded on the disc-shaped recording medium is read intermittently, and the servo controller A disc reproducing apparatus, characterized by comprising control means for stopping an operation. ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR1019940013400A 1993-06-18 1994-06-14 Disc player Ceased KR950001695A (en)

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